A green life sometimes just needs a good idea like sharing cars共车. It’s a new way of thinking. You can use a car but you don’t need to own it. Now the idea of “car sharing” has become       in many countries.

As we know, most cars are parked in garages for much time. In fact, we drive our own cars as long as one or two     a day on average. When we don’t use them, we have to pay for parking and      things. That coats too much money. To save money, some people come up with the idea of “car sharing”. If we share a car, we’ll only         when we use it.

Now many people are starting to do car sharing. In Switzerland, almost 40.000 people have joined it. Japan is also trying to make     popular around the country.

小题1:A popular         B. interesting        C. funny

小题2:A. hour           B. hours            C. minutes

小题3:A. other          B. others            C. another

小题4:A. spend          B. cost            C. pay

小题5:A. time saving      B. money saving     C. car sharing

对于燃油锅炉来说，燃油的油压、油温和油质的变化以及风量的变化都会导致（）的变化，从而引起蒸汽压力的变化。

（A）锅炉热效率

（B）锅炉热值

（C）锅炉工况

（D）蒸发量